Question

Why was the Mexican - American War so important for the United States?

A. The US lost significant land claims in the West

B. The US gained more land, growing its land claims West

C. The US gained more land claims East of the Mississippi River

D.The US really didn't gain much from this small War

E. The US made sure Mexico knew who was boss

Answer 1

Answer: B. The US gained more land, growing its land claims west

Step-by-step explanation:
Many other events occurred as well. Including the California Gold Rush, American Civil War, and dispossession of indigenous people. After the Mexican - American war the US gained the states: California, Texas, New Mexico, Utah, Arizona, Nevada, and parts of Colorado + Wyoming. It doubled the size of the United States.

Answer 2

It’s B because if we didn’t gain more land Mexico would be so much bigger.